/* ============ 主题变量 ============ */
:root{
  --paper:#F5F1EA; --ink:#1A1713; --accent:#B0402A;
  --line:rgba(26,23,19,.16); --muted:rgba(26,23,19,.58);
  --nav-bg:rgba(245,241,234,.85); --code-bg:#E9E2D4; --shadow:rgba(26,23,19,.14);
  --serif:'Fraunces','Noto Serif SC',serif; --mono:'IBM Plex Mono',monospace;
  --pad:clamp(24px,5vw,84px); --ease:cubic-bezier(.22,1,.36,1);
  --h1:clamp(44px,5.6vw,80px); --row-title:clamp(20px,2.2vw,30px);
}
[data-theme="dark"]{
  --paper:#16130F; --ink:#EDE6D8; --accent:#D2604A;
  --line:rgba(237,230,216,.17); --muted:rgba(237,230,216,.55);
  --nav-bg:rgba(22,19,15,.82); --code-bg:#221E17; --shadow:rgba(0,0,0,.5);
}
html,body{overflow-x:clip;}
/* 隐藏浏览器默认滚动条（滚轮/触控板/键盘仍可滚动） */
html{scrollbar-width:none;}
html::-webkit-scrollbar{display:none;}
html{scroll-behavior:smooth;}
body{
  background:var(--paper);color:var(--ink);font-family:var(--serif);
  line-height:1.7;-webkit-font-smoothing:antialiased;
  transition:background-color .4s,color .4s;
}
body::after{
  content:'';position:fixed;inset:0;z-index:60;pointer-events:none;opacity:.05;
  background-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="120" height="120"><filter id="n"><feTurbulence type="fractalNoise" baseFrequency="0.9" numOctaves="2"/></filter><rect width="120" height="120" filter="url(%23n)" opacity="0.4"/></svg>');
}
[data-theme="dark"]::after{opacity:.07;}
::selection{background:var(--accent);color:var(--paper);}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;}
img{display:block;max-width:100%;}
[data-theme="dark"] .article img,[data-theme="dark"] .cover-img,[data-theme="dark"] .row-thumb,[data-theme="dark"] .intro-photo img{filter:brightness(.92) saturate(.95);}
:focus-visible{outline:2px solid var(--accent);outline-offset:4px;}
.container{max-width:1440px;margin-inline:auto;padding-inline:var(--pad);}
.mono{font-family:var(--mono);font-size:12px;letter-spacing:.12em;}
.muted{color:var(--muted);}
.accent{color:var(--accent);}
section{padding-block:clamp(80px,12vh,150px);scroll-margin-top:80px;}
.hollow{font-style:normal;color:transparent;-webkit-text-stroke:1.5px var(--ink);}

/* ============ 视图切换 ============ */
.view{display:none;}
.view.is-active{display:block;animation:viewIn .6s var(--ease) both;}
.view.is-leaving{animation:viewOut .26s ease both;pointer-events:none;}
@keyframes viewIn{from{opacity:0;transform:translateY(22px);}to{opacity:1;transform:none;}}
@keyframes viewOut{to{opacity:0;transform:translateY(-14px);}}

/* ============ 导航 ============ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;justify-content:space-between;align-items:center;
  padding:22px var(--pad);
  opacity:0;transform:translateY(-12px);
  transition:opacity .8s var(--ease),transform .8s var(--ease),background-color .4s,padding .4s,border-color .4s;
  border-bottom:1px solid transparent;
}
body.is-booted .nav{opacity:1;transform:none;}
.nav.scrolled{background:var(--nav-bg);backdrop-filter:blur(12px);border-color:var(--line);padding-block:14px;}
.nav-logo{font-weight:900;font-size:17px;letter-spacing:.06em;}
.nav-logo .mono{color:var(--muted);margin-left:10px;}
.nav-links{display:flex;gap:clamp(14px,3vw,40px);}
.nav-links a{position:relative;font-family:var(--mono);font-size:12px;letter-spacing:.14em;padding-block:4px;transition:color .3s;}
.nav-links a::after{content:'';position:absolute;left:0;bottom:0;width:100%;height:1px;background:var(--accent);transform:scaleX(0);transform-origin:right;transition:transform .4s var(--ease);}
.nav-links a:hover{color:var(--accent);}
.nav-links a:hover::after{transform:scaleX(1);transform-origin:left;}
.nav-links a.is-active{color:var(--accent);}
.nav-links a.is-active::after{transform:scaleX(1);}

/* ============ 左下 / 右下 悬浮按钮 ============ */
.dock{position:fixed;bottom:22px;z-index:55;opacity:0;transition:opacity .8s var(--ease) 1s;}
body.is-booted .dock{opacity:1;}
.dock-l{left:22px;} .dock-r{right:22px;}
.dock button{
  height:44px;min-width:44px;padding:0 16px;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid var(--line);border-radius:999px;background:var(--nav-bg);
  backdrop-filter:blur(10px);font-family:var(--mono);font-size:12px;letter-spacing:.12em;
  transition:border-color .3s,color .3s,transform .3s var(--ease);
}
.dock button:hover{border-color:var(--ink);transform:translateY(-2px);}
.dock-r button{padding:0;width:44px;}
.dock-r svg{width:18px;height:18px;}
[data-theme="light"] .icon-sun{display:none;}
[data-theme="dark"] .icon-moon{display:none;}

/* 同会话内第二次及以后的整页加载：导航与悬浮按钮直接显示，不重播淡入 */
html.intro-shown .nav{opacity:1;transform:none;transition:background-color .4s,padding .4s,border-color .4s;}
html.intro-shown .dock{opacity:1;transition:none;}

/* ============ 首页 ============ */
.avail{display:inline-flex;align-items:center;gap:8px;font-size:14px;}
.avail i{width:8px;height:8px;border-radius:50%;background:var(--accent);animation:pulse 2s ease infinite;flex:none;}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.35;transform:scale(.75);}}
.intro-hero{min-height:100svh;display:flex;align-items:flex-start;padding-top:110px;padding-bottom:64px;}
.intro-grid{display:grid;grid-template-columns:minmax(280px,430px) 1fr;gap:clamp(40px,6vw,110px);align-items:center;width:100%;}
.intro-photo{position:relative;}
.intro-photo::before{content:'';position:absolute;top:20px;left:20px;right:-20px;bottom:-20px;border:1px solid var(--line);pointer-events:none;}
.intro-photo img{width:100%;aspect-ratio:3/4;object-fit:cover;position:relative;z-index:1;}
.intro-photo figcaption{display:flex;justify-content:space-between;gap:12px;margin-top:16px;color:var(--muted);position:relative;z-index:1;}
.intro-meta{color:var(--muted);margin-bottom:18px;}
.intro-name{font-size:var(--h1);font-weight:900;line-height:1.1;letter-spacing:.04em;}
.intro-name .en{display:block;font-family:'Fraunces',serif;font-style:italic;font-weight:300;font-size:clamp(17px,1.8vw,26px);letter-spacing:.06em;color:var(--accent);margin-top:12px;}
.intro-lead{margin-top:30px;font-size:clamp(19px,2vw,26px);font-weight:600;line-height:1.6;max-width:24em;}
.intro-lead em{font-style:normal;color:var(--accent);}
.intro-body{margin-top:22px;max-width:560px;color:var(--muted);display:grid;gap:8px;font-size:15.5px;}
.intro-actions{margin-top:20px;display:flex;flex-direction:column;gap:22px;align-items:flex-start;}
.intro-links{display:flex;gap:clamp(20px,3vw,40px);flex-wrap:wrap;}

/* ============ 通用组件 ============ */
.sec-head{display:flex;align-items:baseline;gap:20px;margin-bottom:clamp(48px,7vh,84px);}
.sec-num{font-family:var(--mono);font-size:13px;color:var(--accent);letter-spacing:.15em;white-space:nowrap;}
.sec-line{flex:1;height:1px;background:var(--line);align-self:center;}
.sec-title{font-size:clamp(26px,3vw,38px);font-weight:600;letter-spacing:.08em;}
[data-reveal]{opacity:0;transform:translateY(28px);transition:opacity .9s var(--ease) var(--d,0ms),transform .9s var(--ease) var(--d,0ms);}
[data-reveal].in-view{opacity:1;transform:none;}
.link-arrow{display:inline-flex;align-items:center;gap:10px;border-bottom:1px solid var(--ink);padding-bottom:4px;transition:color .3s,border-color .3s;}
.link-arrow svg{transition:transform .4s var(--ease);}
.link-arrow:hover{color:var(--accent);border-color:var(--accent);}
.link-arrow:hover svg{transform:translateX(6px);}
.page-hero{padding-top:calc(86px + clamp(50px,9vh,100px));padding-bottom:clamp(36px,6vh,64px);}
.page-hero h1{font-size:var(--h1);font-weight:600;line-height:1.1;letter-spacing:.02em;}
.ph-sup{font-family:var(--mono);font-size:.24em;color:var(--accent);vertical-align:super;margin-left:10px;letter-spacing:.1em;}
.ph-meta{color:var(--muted);margin-bottom:22px;}
.ph-row{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-top:30px;padding-top:18px;border-top:1px solid var(--line);color:var(--muted);}

/* ============ 列表 ============ */
.row-thumb{width:84px;height:56px;border-radius:6px;object-fit:cover;border:1px solid var(--line);transition:transform .5s var(--ease);}
.row-arrow{justify-self:end;align-self:center;transition:transform .45s var(--ease),color .45s var(--ease);}
.work-row:hover .row-thumb,.post-row:hover .row-thumb{transform:scale(1.05);}
.work-row:hover .row-arrow,.post-row:hover .row-arrow{transform:translateX(6px);color:var(--accent);}
.work-list,.post-list{list-style:none;border-bottom:1px solid var(--line);}
.work-list li{display:flex;align-items:stretch;gap:clamp(12px,2vw,20px);}
.work-list li .work-row{flex:1;}
.w-play{display:inline-flex;align-items:center;gap:6px;align-self:center;flex-shrink:0;
  font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--muted);
  border:1px solid var(--line);border-radius:999px;padding:8px 14px;
  transition:color .3s,border-color .3s,background-color .3s;}
.w-play:hover{border-color:var(--ink);background:var(--ink);color:var(--paper);}
.post-item.is-hidden{display:none;}
.work-row{display:grid;align-items:center;grid-template-columns:44px 84px 1fr auto 96px 32px;
  grid-template-areas:"num thumb name cat year arrow";gap:clamp(14px,2.5vw,32px);
  padding-block:clamp(20px,3vh,28px);border-top:1px solid var(--line);}
.w-num{grid-area:num;font-family:var(--mono);font-size:13px;color:var(--muted);}
.work-row .row-thumb{grid-area:thumb;}
.w-name{grid-area:name;font-size:var(--row-title);font-weight:600;line-height:1.35;transition:transform .45s var(--ease),color .45s var(--ease);}
.w-cat{grid-area:cat;font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--muted);}
.w-year{grid-area:year;font-family:'Fraunces',serif;font-style:italic;font-size:16px;color:var(--muted);text-align:right;}
.work-row .row-arrow{grid-area:arrow;}
.work-row:hover .w-name{transform:translateX(12px);color:var(--accent);}
.post-row{display:grid;align-items:center;grid-template-columns:110px 84px 1fr auto 32px;
  grid-template-areas:"date thumb title tag arrow";gap:clamp(14px,2.5vw,32px);
  padding-block:clamp(18px,2.8vh,26px);border-top:1px solid var(--line);}
.p-date{grid-area:date;font-family:var(--mono);font-size:12.5px;letter-spacing:.08em;color:var(--muted);}
.post-row .row-thumb{grid-area:thumb;}
.p-title{grid-area:title;font-size:var(--row-title);font-weight:600;line-height:1.35;transition:transform .45s var(--ease),color .45s var(--ease);}
.p-tag{grid-area:tag;font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--muted);}
.post-row .row-arrow{grid-area:arrow;}
.post-row:hover .p-title{transform:translateX(12px);color:var(--accent);}
.filter-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:clamp(32px,5vh,52px);}
.filter-btn{font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--muted);
  border:1px solid var(--line);border-radius:999px;padding:9px 18px;
  transition:color .3s,border-color .3s,background-color .3s;}
.filter-btn span{opacity:.55;margin-left:2px;}
.filter-btn:hover{border-color:var(--ink);color:var(--ink);}
.filter-btn.is-active{background:var(--ink);border-color:var(--ink);color:var(--paper);}

/* ============ 详情页 ============ */
.detail-hero{padding-top:calc(86px + clamp(28px,6vh,60px));padding-bottom:clamp(26px,5vh,48px);}
.back-link{display:inline-flex;align-items:center;gap:8px;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:3px;transition:color .3s,border-color .3s;}
.back-link:hover{color:var(--accent);border-color:var(--accent);}
.detail-meta{color:var(--muted);}
.detail-title{font-size:var(--h1);font-weight:600;line-height:1.15;margin-top:8px;}
.detail-grid{display:grid;grid-template-columns:minmax(280px,440px) 1fr;gap:clamp(36px,6vw,100px);align-items:start;}
.cover-figure{margin:0 0 clamp(40px,7vh,64px);}
.cover-img{width:100%;aspect-ratio:21/9;object-fit:cover;border-radius:10px;border:1px solid var(--ink);box-shadow:0 24px 48px var(--shadow);}
.wd-meta{display:flex;gap:clamp(24px,4vw,56px);margin-top:32px;padding-top:20px;border-top:1px solid var(--line);flex-wrap:wrap;}
.wd-meta div{font-family:var(--mono);font-size:12px;letter-spacing:.08em;}
.wd-meta span{display:block;color:var(--muted);margin-bottom:6px;}
.detail-actions{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap;}
.repo-btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:12px;letter-spacing:.12em;
  border:1px solid var(--ink);border-radius:999px;padding:13px 24px;transition:background-color .35s,color .35s;}
.repo-btn svg{transition:transform .4s var(--ease);}
.repo-btn:hover{background:var(--ink);color:var(--paper);}
.repo-btn:hover svg{transform:translate(2px,-2px);}
.repo-btn.primary{background:var(--ink);color:var(--paper);}
.repo-btn.primary:hover{background:var(--accent);border-color:var(--accent);}
.pn-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(20px,3vw,48px);margin-top:clamp(48px,8vh,80px);border-top:1px solid var(--line);padding-top:26px;}
.pn-cell{display:flex;flex-direction:column;gap:8px;}
.pn-cell.next{text-align:right;align-items:flex-end;}
.pn-label{color:var(--muted);}
.pn-title{font-size:clamp(18px,1.9vw,24px);font-weight:600;transition:color .3s;}
a.pn-cell:hover .pn-title{color:var(--accent);}
.md-loading{color:var(--muted);font-family:var(--mono);font-size:13px;letter-spacing:.1em;}

/* ============ Markdown 渲染样式 ============ */
.article{max-width:680px;}
.article .lede{font-size:clamp(18px,1.9vw,23px);font-weight:600;line-height:1.8;}
.article .body-p{margin-top:1.3em;color:rgba(128,120,108,.001);}
.article p{margin-top:1.3em;color:var(--muted);font-size:16px;line-height:2.05;}
.article p:first-child{margin-top:0;}
.article h2,.article h3,.article h4{margin:1.8em 0 .6em;font-weight:600;line-height:1.4;letter-spacing:.03em;}
.article h2{font-size:clamp(22px,2.2vw,30px);}
.article h3{font-size:clamp(19px,1.8vw,24px);}
.article h4{font-size:17px;}
.article a{color:var(--accent);border-bottom:1px solid var(--accent);transition:opacity .3s;}
.article a:hover{opacity:.7;}
.article strong{color:var(--ink);font-weight:600;}
.article blockquote{margin:1.6em 0;padding:2px 0 2px 22px;border-left:2px solid var(--accent);color:var(--muted);font-style:italic;}
.article ul,.article ol{margin:1.2em 0;padding-left:1.5em;color:var(--muted);font-size:15.5px;}
.article li{margin-block:.45em;}
.article li input[type=checkbox]{accent-color:var(--accent);margin-right:8px;}
.article li ul,.article li ol{margin:.4em 0;}
.article code{font-family:var(--mono);font-size:.86em;background:var(--code-bg);border-radius:5px;padding:2px 7px;}
.article pre{margin:1.6em 0;padding:22px 24px;background:var(--code-bg);border-radius:10px;overflow-x:auto;line-height:1.75;}
.article pre code{background:none;padding:0;font-size:13.5px;}
.article hr{margin:2.4em 0;border:none;border-top:1px solid var(--line);}
.article figure{margin:2em 0;}
.article figure img{width:100%;border-radius:10px;border:1px solid var(--line);}
.article figcaption{margin-top:12px;text-align:center;color:var(--muted);font-family:var(--mono);font-size:12px;letter-spacing:.1em;}
.article .table-wrap{overflow-x:auto;margin:1.6em 0;}
.article table{width:100%;border-collapse:collapse;font-size:14.5px;}
.article th,.article td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article th{font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:var(--ink);background:var(--code-bg);}

/* ============ 联系页 ============ */
.contact-hero{padding-bottom:clamp(50px,8vh,90px);}
.contact-title{font-size:var(--h1);font-weight:600;line-height:1.18;max-width:12em;}
.contact-note{margin-top:28px;color:var(--muted);max-width:460px;font-size:15.5px;}
.email-row{margin-top:clamp(44px,7vh,72px);padding-top:36px;border-top:1px solid var(--line);display:flex;align-items:center;gap:clamp(20px,4vw,44px);flex-wrap:wrap;}
.email{font-family:'Fraunces',serif;font-size:clamp(24px,4.2vw,58px);font-weight:300;font-style:italic;
  background-image:linear-gradient(currentColor,currentColor);background-repeat:no-repeat;
  background-size:100% 1px;background-position:0 96%;transition:color .4s var(--ease);overflow-wrap:anywhere;}
.email:hover{color:var(--accent);}
.copy-btn{font-family:var(--mono);font-size:12px;letter-spacing:.14em;display:inline-flex;align-items:center;gap:9px;
  border:1px solid var(--line);border-radius:999px;padding:12px 22px;transition:border-color .35s,background-color .35s,color .35s;}
.copy-btn i{width:7px;height:7px;border-radius:50%;background:var(--muted);transition:background-color .35s;}
.copy-btn:hover{border-color:var(--ink);}
.copy-btn.done{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.copy-btn.done i{background:var(--accent);}
.socials{margin-top:44px;display:flex;gap:clamp(20px,3.5vw,44px);flex-wrap:wrap;}
.socials a{font-family:var(--mono);font-size:12px;letter-spacing:.14em;display:inline-flex;align-items:center;gap:7px;color:var(--muted);transition:color .3s;}
.socials a:hover{color:var(--accent);}
.info-row{display:grid;grid-template-columns:200px 1fr;gap:clamp(20px,3vw,48px);padding-block:22px;border-top:1px solid var(--line);align-items:baseline;}
.info-list{border-bottom:1px solid var(--line);}
.info-label{font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--muted);}
.info-value{font-size:clamp(17px,1.8vw,22px);font-weight:600;font-variant-numeric:tabular-nums;}
.step-row{display:grid;grid-template-columns:56px 220px 1fr;gap:clamp(20px,3vw,48px);padding-block:clamp(26px,3.6vh,38px);border-top:1px solid var(--line);align-items:baseline;}
.step-list{border-bottom:1px solid var(--line);}
.step-num{font-family:var(--mono);font-size:13px;color:var(--accent);}
.step-row h3{font-size:clamp(19px,2vw,26px);font-weight:600;}
.step-row p{color:var(--muted);font-size:15px;max-width:520px;}

/* ============ 页脚 ============ */
footer{border-top:1px solid var(--line);}
.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;padding-block:26px;color:var(--muted);}
.to-top{font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--ink);border-bottom:1px solid var(--line);padding-bottom:2px;transition:border-color .3s,color .3s;}
.to-top:hover{color:var(--accent);border-color:var(--accent);}
.js-clock{font-variant-numeric:tabular-nums;}

/* ============ 响应式 ============ */
@media (max-width:860px){
  .dock{bottom:14px;} .dock-l{left:14px;} .dock-r{right:14px;}
  .dock button{height:40px;min-width:40px;}
  .nav-links{gap:14px;}
  .nav-links a{font-size:11px;letter-spacing:.06em;}
  .nav-logo .mono{display:none;}
  .intro-hero{padding-top:96px;}
  .intro-grid{grid-template-columns:1fr;align-items:start;}
  .intro-photo{max-width:440px;}
  .intro-photo::before{display:none;}
  .work-row{grid-template-columns:84px 1fr 32px;grid-template-areas:"thumb name arrow" "thumb year arrow";row-gap:6px;}
  .w-num,.w-cat{display:none;}
  .w-year{text-align:left;}
  .post-row{grid-template-columns:84px 1fr 32px;grid-template-areas:"thumb title arrow" "thumb date arrow";row-gap:6px;}
  .p-tag{display:none;}
  .detail-grid{grid-template-columns:1fr;}
  .cover-img{aspect-ratio:16/10;}
  .pn-grid{grid-template-columns:1fr;gap:0;}
  .pn-cell{padding-block:14px;}
  .pn-cell.next{align-items:flex-start;text-align:left;border-top:1px solid var(--line);}
  .step-row{grid-template-columns:1fr;gap:8px;}
  .info-row{grid-template-columns:1fr;gap:4px;}
  .footer-inner{justify-content:center;padding-inline:52px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;}
  html{scroll-behavior:auto;}
}